Glan Môr, 'Ar fin y tonnau saif y ddau', (Wil Ifan), Endorsed: '192?',
- 132.
- Ffeil
- [?1920x1929].
132/1. Autograph copy. [B]. 132/2. Gwilym Thomas copy, [D]. 132/3. Gwilym Thomas copy. [D]. 132/4. MS music book containing two rough drafts of Glan Môr and draft of another work. [B].